The Screw,externally Relieved Body, cataloged under National Stock Number 5305-00-207-7871, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-207-7871 |
| Item Name | Screw,externally Relieved Body |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.095 INCHES MINIMUM AND 0.105 INCHES MAXIMUM IN |
| Fastener Length | 0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN |
| Thread Length | 0.287 INCHES MINIMUM AND 0.307 INCHES MAXIMUM IN |
| First Diameter From Head | 0.267 INCHES MINIMUM AND 0.272 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.073 INCHES MINIMUM AND 0.083 INCHES MAXIMUM IN |
| Externally Relieved Body Diameter Quantity | 1 |
| Surface Treatment | ANODIZE OVERALL |
| Internal Drive Style | SLOT |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | ALUMINUM ALLOY OVERALL |
| Thread Series Designator | UNEF |
| Head Diameter | 0.557 INCHES MINIMUM AND 0.567 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 1471C658 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-00-207-7871 is a Screw,externally Relieved Body, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-00-207-7871: Head Height: 0.095 INCHES MINIMUM AND 0.105 INCHES MAXIMUM IN; Fastener Length: 0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN; Thread Length: 0.287 INCHES MINIMUM AND 0.307 INCHES MAXIMUM IN; First Diameter From Head: 0.267 INCHES MINIMUM AND 0.272 INCHES MAXIMUM IN. 16 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.